191
Environment-resistive Terminals (IP66) Section 5-3
The following diagram shows the internal circuits for the DRT1-WD16C-1
Environment-resistive Terminal (PNP).
Wiring The following diagram shows the wiring of the DRT1-WD16C Environment-
resistive Terminal (NPN).
1
24
2
13
4
2
31
4
5
DRAIN V−
V+
CAN LCAN H
3
VG
CN3
Physical
layer
Photo-
coupler
DC-DC
converter
(Isolated)
Voltage
step-down
Photo-
coupler
CN1
(Communications
connector)
0 V (for internal circuits)
0 V
(for outputs)
CN2
(External
power supply
connector)
24 V
(for outputs)
Output 0
Output 1
24 V
(for internal
circuits)
Internal
circuitry
Photo-
coupler
Photo-
coupler
DC-DC
converter
(Not
isolated)
+
−
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
2
13
4
VG
1
24
3
2
31
4
5
DRAIN V−
V+
CAN LCAN H
+
−
CN3 CN4 CN5 CN6 CN7 CN8 CN9 CN10 CN2 CN1
Output 0
Output 1
Output 2
Output 3
Output 4
Output
5
Output 6
Output 7
Output 8
Output 9
Output 10
Output
11
Output 12
Output 13
Output
14
Output
15
(end surface)
Valve Solenoid Solenoid
I/O power
supply
Internal power
supply